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These quadruple bus buffer gates feature independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low.
The SN54HC126 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74HC126 is characterized for operation from 40°C to 85°C.
SN74HC126 Maximum Ratings
Supply voltage range, VCC .................................. 0.5 V to 7 V Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1)..................... ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) ...................±20 mA Continuous output current, IO (VO = 0 to VCC) .......................... ±35 mA Continuous current through VCC or GND ............................. ±70 mA Package thermal impedance, JA (see Note 2): D package.................... 127°C/W DB package ............................................158°C/W N package .............................................78°C/W Storage temperature range, Tstg ............................65°C to 150°C † Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
SN74HC126 Features
· High-Current 3-State Outputs Interface Directly With System Bus or Can Drive up to 15 LSTTL Loads · Package Options Include Plastic Small-Outline (D), Shrink Small-Outline (DB), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs